Yashima, Kumamoto, Japan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
June Air Quality Analysis
Yashima, Kumamoto, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (2nd June):
On this day, AQI across the 5 years varied significantly: 2026 ranks the most lowest AQI at 13 of Good air quality, showing improvement over 2025, 2024, 2023 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 1st Jun - 2nd Jun 2026
Yashima, Kumamoto, Japan
5 AM1st Jun 2026
7 PM
4 AM2nd Jun 2026
87AQI
42AQI
51AQI
18AQI
In the last 24 hours,
Yashima's AQI reached its highest point of 87 at 6 PM during the Day, while the lowest point, 18, was recorded at 3 AM during the Night between 1st Jun and 2nd Jun 2026.
Day & Night AQI Trend : May - Jun 2026
Yashima, Kumamoto, Japan
16°C14/19°C
16°C11/21°C
18°C13/24°C
20°C15/25°C
18°C13/21°C
17°C13/22°C
18°C12/24°C
19°C14/25°C
19°C14/24°C
20°C14/25°C
20°C16/26°C
22°C15/29°C
22°C16/27°C
23°C17/29°C
23°C17/30°C
23°C16/30°C
25°C21/31°C
22°C19/22°C
22°C18/27°C
23°C19/28°C
23°C19/28°C
25°C20/30°C
22°C19/24°C
21°C20/22°C
22°C21/23°C
23°C19/27°C
23°C17/29°C
24°C21/30°C
22°C18/27°C
21°C21/22°C
46AQI
40AQI
47AQI
41AQI
2026 Days Vs Air Quality
Yashima, Kumamoto, Japan
79%
121
21%
32
Total number of days with different AQI categories in last 153 days in 2026 (212 days remaining)
Under WHO’s Safe Air Quality Limits: 79%
Health Risk Level:
Low
In 2026, 79% of 153 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Yashima, Kumamoto, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
25AQI (US)
20AQI (US)
24AQI (US)
41AQI (US)
50AQI (US)
40AQI (US)
44AQI (US)
41AQI (US)
30AQI (US)
33AQI (US)
35AQI (US)
36AQI (US)
41AQI (US)
45AQI (US)
50AQI (US)
44AQI (US)
54AQI (US)
58AQI (US)
66AQI (US)
39AQI (US)
21AQI (US)
30AQI (US)
39AQI (US)
52AQI (US)
31AQI (US)
23AQI (US)
39AQI (US)
37AQI (US)
42AQI (US)
41AQI (US)
27AQI (US)
49AQI (US)
47AQI (US)
42AQI (US)
41AQI (US)
42AQI (US)
42AQI (US)
35AQI (US)
21AQI (US)
42AQI (US)
45AQI (US)
44AQI (US)
47AQI (US)
48AQI (US)
50AQI (US)
45AQI (US)
60AQI (US)
35AQI (US)
29AQI (US)
63AQI (US)
44AQI (US)
48AQI (US)
35AQI (US)
37AQI (US)
38AQI (US)
28AQI (US)
18AQI (US)
40AQI (US)
38AQI (US)
37AQI (US)
30AQI (US)
14AQI (US)
41AQI (US)
47AQI (US)
49AQI (US)
47AQI (US)
39AQI (US)
45AQI (US)
57AQI (US)
42AQI (US)
48AQI (US)
37AQI (US)
44AQI (US)
58AQI (US)
51AQI (US)
51AQI (US)
55AQI (US)
27AQI (US)
54AQI (US)
38AQI (US)
44AQI (US)
19AQI (US)
52AQI (US)
29AQI (US)
24AQI (US)
58AQI (US)
82AQI (US)
97AQI (US)
59AQI (US)
26AQI (US)
19AQI (US)
54AQI (US)
52AQI (US)
43AQI (US)
44AQI (US)
56AQI (US)
39AQI (US)
32AQI (US)
35AQI (US)
44AQI (US)
34AQI (US)
35AQI (US)
34AQI (US)
35AQI (US)
31AQI (US)
35AQI (US)
35AQI (US)
30AQI (US)
24AQI (US)
25AQI (US)
37AQI (US)
44AQI (US)
19AQI (US)
21AQI (US)
42AQI (US)
46AQI (US)
53AQI (US)
47AQI (US)
37AQI (US)
30AQI (US)
37AQI (US)
54AQI (US)
34AQI (US)
27AQI (US)
25AQI (US)
31AQI (US)
31AQI (US)
28AQI (US)
31AQI (US)
35AQI (US)
43AQI (US)
29AQI (US)
34AQI (US)
30AQI (US)
39AQI (US)
78AQI (US)
63AQI (US)
53AQI (US)
46AQI (US)
61AQI (US)
65AQI (US)
69AQI (US)
62AQI (US)
63AQI (US)
54AQI (US)
41AQI (US)
24AQI (US)
25AQI (US)
26AQI (US)
31AQI (US)
47AQI (US)
64AQI (US)
13AQI (US)
39AQI (US)
41AQI (US)
45AQI (US)
37AQI (US)
42AQI (US)
39AQI (US)
No. of days
202641AQI (US)
Highest AQI (US) recorded in
March45AQI (US)
Lowest AQI (US) recorded in
April37AQI (US)
202545AQI (US)
Highest AQI (US) recorded in
October57AQI (US)
Lowest AQI (US) recorded in
September32AQI (US)
202448AQI (US)
Highest AQI (US) recorded in
January65AQI (US)
Lowest AQI (US) recorded in
July33AQI (US)
202345AQI (US)
Highest AQI (US) recorded in
April53AQI (US)
Lowest AQI (US) recorded in
August32AQI (US)
202246AQI (US)
Highest AQI (US) recorded in
May53AQI (US)
Lowest AQI (US) recorded in
August34AQI (US)
202143AQI (US)
Highest AQI (US) recorded in
May50AQI (US)
Lowest AQI (US) recorded in
August29AQI (US)
202047AQI (US)
Highest AQI (US) recorded in
May55AQI (US)
Lowest AQI (US) recorded in
July31AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Yashima's annual 2026 AQI (US) (41) shows an average percentage change of -10.1% (improved AQI (US)) compared to previous years: 2020 (47), 2021 (43), 2022 (46), 2023 (45), 2024 (48), 2025 (45).